Add setAll, insertAll, replaceRange and fillRange.

sdk/lib/html/html_common/filtered_element_list.dart

Index: sdk/lib/html/html_common/filtered_element_list.dart
diff --git a/sdk/lib/html/html_common/filtered_element_list.dart b/sdk/lib/html/html_common/filtered_element_list.dart
index cad661e7b0ae1dc01b37036b1d9e043a4b98676d..0efe3d540deb0e1d008a30cd66274d0e6c0831f7 100644
--- a/sdk/lib/html/html_common/filtered_element_list.dart
+++ b/sdk/lib/html/html_common/filtered_element_list.dart
@@ -76,6 +76,14 @@ class FilteredElementList extends ListBase<Element> {
     throw new UnimplementedError();
   }
 
+  void fillRange(int start, int end, [Element fillValue]) {
+    throw new UnimplementedError();
+  }
+
+  void replaceRange(int start, int end, Iterable<Element> iterable) {
+    throw new UnimplementedError();
+  }
+
   void removeRange(int start, int end) {
     _filtered.sublist(start, end).forEach((el) => el.remove());
   }
@@ -102,6 +110,10 @@ class FilteredElementList extends ListBase<Element> {
     _childNodes.insert(index, value);
   }
 
+  void insertAll(int index, Iterable<Element> iterable) {
+    _childNodes.insertAll(index, iterable);
+  }
+
   Element removeAt(int index) {
     final result = this[index];
     result.remove();